op {
  name: "DecodeWav"
  input_arg {
    name: "contents"
    type: DT_STRING
  }
  output_arg {
    name: "audio"
    type: DT_FLOAT
  }
  output_arg {
    name: "sample_rate"
    type: DT_INT32
  }
  attr {
    name: "desired_channels"
    type: "int"
    default_value {
      i: -1
    }
  }
  attr {
    name: "desired_samples"
    type: "int"
    default_value {
      i: -1
    }
  }
}
